Graphene oxide incorporated cellulose triacetate/cellulose acetate nanocomposite membranes for forward osmosis desalination

Ahmed, Doaa F.; Isawi, Heba; Badway, Nagwa A.; El-Bayaa, A. A.; Shawky, Hosam

doi:10.1016/j.arabjc.2021.102995

Cited by 41 publications

(10 citation statements)

References 49 publications

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“…Many publications on this phenomenon claim that increased viscosity causes lateral holes to form, similar to the pores seen in this study. 76,77 3.2.3. Membrane physical properties.…”

Section: Resultsmentioning

confidence: 99%

Preparation, characterization, and performance of PES/GO woven mixed matrix nanocomposite forward osmosis membrane for water desalination

et al. 2022

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“…Many publications on this phenomenon claim that increased viscosity causes lateral holes to form, similar to the pores seen in this study. 76,77 3.2.3. Membrane physical properties.…”

Section: Resultsmentioning

confidence: 99%

Preparation, characterization, and performance of PES/GO woven mixed matrix nanocomposite forward osmosis membrane for water desalination

et al. 2022

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“…Since the crystalline domains in polymers are generally not accessible to gas molecules, a decrease in gas solubility, diffusivity and permeability is common, especially for CO 2 [ 26 ]. Moreover, CTA is a fascinating polymeric constituent for desalination due to its high salt rejection potential, practical mechanical strength, relatively low cost and ability to form a dense film [ 27 ]. The structure of CTA is shown in Figure 1 .…”

Section: Introductionmentioning

confidence: 99%

CeO2-Blended Cellulose Triacetate Mixed-Matrix Membranes for Selective CO2 Separation

et al. 2021

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Due to the high affinity of ceria (CeO2) towards carbon dioxide (CO2) and the high thermal and mechanical properties of cellulose triacetate (CTA) polymer, mixed-matrix CTA-CeO2 membranes were fabricated. A facile solution-casting method was used for the fabrication process. CeO2 nanoparticles at concentrations of 0.32, 0.64 and 0.9 wt.% were incorporated into the CTA matrix. The physico-chemical properties of the membranes were evaluated by SEM-EDS, XRD, FTIR, TGA, DSC and strain-stress analysis. Gas sorption and permeation affinity were evaluated using different single gases. The CTA-CeO2 (0.64) membrane matrix showed a high affinity towards CO2 sorption. Almost complete saturation of CeO2 nanoparticles with CO2 was observed, even at low pressure. Embedding CeO2 nanoparticles led to increased gas permeability compared to pristine CTA. The highest gas permeabilities were achieved with 0.64 wt.%, with a threefold increase in CO2 permeability as compared to pristine CTA membranes. Unwanted aggregation of the filler nanoparticles was observed at a 0.9 wt.% concentration of CeO2 and was reflected in decreased gas permeability compared to lower filler loadings with homogenous filler distributions. The determined gas selectivity was in the order CO2/CH4 > CO2/N2 > O2/N2 > H2/CO2 and suggests the potential of CTA-CeO2 membranes for CO2 separation in flue/biogas applications.

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“…Hydroxyapatite-containing (an important mineral component) nanofertilizers are nutrient delivery systems that are nano-enabled, have a high surface-area-to-volume ratio, and can supply both calcium and phosphorus to plants. Urea-loaded hydroxyapatite nanohybrids are potential nano-encapsulated fertilizers for the gradual release of nitrogen [ 20 ]. Owing to the exceptional qualities of mesoporous silica NPs, such as their large surface area, mesoporous architecture, biocompatibility, and nontoxicity, they have the potential to enhance the crop quality and support sustainable agriculture.…”

Section: Synthesis Of Nanofertilizersmentioning

confidence: 99%

Nanofertilizers: A Smart and Sustainable Attribute to Modern Agriculture

Nongbet

Mishra

Mohanta

et al. 2022

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The widespread use of fertilizers is a result of the increased global demand for food. The commonly used chemical fertilizers may increase plant growth and output, but they have deleterious effects on the soil, the environment, and even human health. Therefore, nanofertilizers are one of the most promising solutions or substitutes for conventional fertilizers. These engineered materials are composed of nanoparticles containing macro- and micronutrients that are delivered to the plant rhizosphere in a regulated manner. In nanofertilizers, the essential minerals and nutrients (such as N, P, K, Fe, and Mn) are bonded alone or in combination with nano-dimensional adsorbents. This review discusses the development of nanotechnology-based smart and efficient agriculture using nanofertilizers that have higher nutritional management, owing to their ability to increase the nutrient uptake efficiency. Additionally, the synthesis and mechanism of action of the nanofertilizers are discussed, along with the different types of fertilizers that are currently available. Furthermore, sustainable agriculture can be realised by the targeted delivery and controlled release of nutrients through the application of nanoscale active substances. This paper emphasises the successful development and safe application of nanotechnology in agriculture; however, certain basic concerns and existing gaps in research need to be addressed and resolved.

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Graphene oxide incorporated cellulose triacetate/cellulose acetate nanocomposite membranes for forward osmosis desalination

Cited by 41 publications

References 49 publications

Preparation, characterization, and performance of PES/GO woven mixed matrix nanocomposite forward osmosis membrane for water desalination

Preparation, characterization, and performance of PES/GO woven mixed matrix nanocomposite forward osmosis membrane for water desalination

CeO2-Blended Cellulose Triacetate Mixed-Matrix Membranes for Selective CO2 Separation

Nanofertilizers: A Smart and Sustainable Attribute to Modern Agriculture

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